Effect of Cold Rolling on the {110} <001> Secondary Recrystallization in 3% Silicon Steel

Abstract

Cold rolling is a primary process for producing the texture of {110} <001>in 3% silicon steel. Two types of experiments are made to evaluate the role of cold reduction. One is the change of rolling direction between cold rolling and hot rolling. Heavy cold reduction of 87% resulted in highly prefered orientation of the {110} <001> secondary recrystallized texture regardless of the cold rolling direction, whereas lower cold reduction of 70% led to deviation of <001> axis to the hot rolling direction.
The second experiment is cold rolling with grooved roll during the early stage of cold rolling. Cold reduction with grooved roll led to the occurrence of smaller secondary grains with {210} <001> and {310} <001> orientations among the large {110} (001) grains resulting in smaller average grain size as compared to the ordinary case.